forked from Congenital/daemon
/
daemon.go
285 lines (222 loc) · 4.77 KB
/
daemon.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
package main
import (
"errors"
"flag"
"github.com/Congenital/log/v0.2/log"
"io"
"os"
"os/exec"
"runtime"
"strings"
"sync"
"time"
"unsafe"
//"path/filepath"
)
var Pool = &sync.Pool{}
type StringBuffer struct {
data []string
length int
Msg chan int
}
func NewStringBuffer() *StringBuffer {
return &StringBuffer{
data: make([]string, 0),
length: 0,
Msg: make(chan int),
}
}
func (this *StringBuffer) Write(buff []byte) (int, error) {
log.Info(*(*string)(unsafe.Pointer(&buff)))
var relative int
for i := 0; i < len(buff); i++ {
if buff[i] == '\n' || buff[i] == '\r' {
buf := buff[relative:i]
relative = i
data := *(*string)(unsafe.Pointer(&buf))
this.data = append(this.data, data)
this.length++
}
}
return len(buff), nil
}
func (this *StringBuffer) Read() ([]string, error) {
defer this.Clear()
if this.data == nil {
return nil, errors.New("data is nil")
}
return this.data, nil
}
func (this *StringBuffer) Clear() {
for i := 0; i < len(this.data); i++ {
Pool.Put(this.data[i])
}
this.data = make([]string, 0)
this.length = 0
}
type APP struct {
User string
Pid string
Program string
Params []string
}
func main() {
if len(os.Args) < 3 {
log.ErrorNoLine(`
-root : server root path(can empty)
-filter : process filter(if empty, no effect)
-server : server relative path
-time : search time
`)
return
}
runtime.GOMAXPROCS(runtime.NumCPU())
var root string
var server string
var filter string
var t int
flag.StringVar(&root, "root", "", "server root path")
flag.StringVar(&server, "server", "", "server relative path")
flag.StringVar(&filter, "filter", "", "process filter")
flag.IntVar(&t, "time", 5, "search time")
flag.Parse()
if len(root) > 0 && root[len(root)-1:len(root)] != "/" {
root += "/"
}
serverlist := strings.Split(server, ",")
if len(serverlist) <= 0 {
log.ErrorNoLine("Please Input Server Path")
return
}
servers := make([]string, 0)
for i := 0; i < len(serverlist); i++ {
if serverlist[i] != "" {
servers = append(servers, serverlist[i])
}
}
waitgroup := &sync.WaitGroup{}
buff := NewStringBuffer()
timer := time.NewTimer(time.Second * time.Duration(t))
waitgroup.Add(1)
fl := GetFilter(ParseFilter(filter))
go func() {
defer waitgroup.Done()
for {
GetApp(buff, fl)
buff.Msg <- 1
<-timer.C
timer.Reset(time.Second * time.Duration(t))
}
}()
go func() {
for {
<-buff.Msg
data, err := buff.Read()
if err != nil {
log.ErrorNoLine(err)
break
}
apps := ParseApp(data)
noStartServer, err := CheckApp(apps, root, servers)
if err != nil {
log.ErrorNoLine(err)
return
}
log.Info("Need Start Server:\n", noStartServer)
StartApps(root, noStartServer)
}
}()
waitgroup.Wait()
log.InfoNoLine("Exit")
}
func GetApp(write io.Writer, param string) {
cmd := exec.Command("/bin/bash", "-c", `ps aux | awk '`+param+` {print $1" "$2" "$11}'`)
cmd.Stdout = write
err := cmd.Run()
if err != nil {
log.Error(err)
return
}
}
func StartApps(root string, app []string) {
for _, v := range app {
StartApp(root, v)
}
}
func StartApp(root string, app string) {
cmd := exec.Command("run", root+app)
log.Info("Start : ", root+app)
file, err := os.OpenFile(root+app+".log", os.O_CREATE|os.O_RDWR|os.O_APPEND, 0660)
if err != nil {
log.Error(err)
return
}
cmd.Stdout = file
cmd.Stdin = os.Stdin
cmd.Stderr = file
err = cmd.Run()
if err != nil {
log.Error(err)
return
}
return
}
func CheckApp(apps []*APP, root string, servers []string) ([]string, error) {
noStartApp := make([]string, 0)
appslength := len(apps)
if len(apps) == 0 {
return servers, nil
}
for _, server := range servers {
for i, app := range apps {
if app.Program == root+server {
break
}
if i == appslength-1 {
noStartApp = append(noStartApp, server)
}
}
}
return noStartApp, nil
}
func ParseFilter(filter string) []string {
filters := make([]string, 0)
fls := strings.Split(filter, ",")
for i := 0; i < len(fls); i++ {
if len(fls[i]) != 0 {
filters = append(filters, fls[i])
}
}
return filters
}
func GetFilter(filters []string) string {
var filter string
for i, v := range filters {
filter += `$11~/` + ParsePath(v) + `/`
if i != len(filters)-1 {
filter += "||"
}
}
return filter
}
func ParseApp(data []string) []*APP {
apps := make([]*APP, 0)
for i := 0; i < len(data); i++ {
datas := strings.Split(data[i], " ")
apps = append(apps, &APP{
User: datas[0],
Pid: datas[1],
Program: datas[2],
})
}
return apps
}
func ParsePath(path string) string {
return strings.Replace(path, "/", "\\/", -1)
}
func UnparsePath(path string) string {
return strings.Replace(path, "\\/", "/", -1)
}
func GetPath(path string) string {
return path[:strings.LastIndex(path, "/")]
}